6. Labiobaetis vinosus (Barnard, 1932)

Labiobaetis vinosus Barnard 1932

Pseudocloeon tenuicrinitum Kopelke 1980 ( Pseudocloeon tenuicrinitum; informal synonym, Kluge 2020)

Baetis spatulatus Gillies 1994: figs 16-26 ( Baetis spatulatus; formal synonym, Kluge and Novikova 2016)

Labiobaetis vinosus Lugo-Ortiz and McCafferty 1997: figs 75-86

Labiobaetis tenuicrinitus Kluge and Novikova 2016: figs 113, 122-129, 132, 133 ( L. tenuicrinitus; informal synonym, Kluge 2020)

Remark.

Judging from the figures and description in Kluge and Novikova (2016), there is no morphological difference between L. vinosus and L. tenuicrinitus . Kluge (2020) also indicates the synonymy of both species. However, no formal synonymy has been established so far. As we have not seen material of L. tenuicrinitus, we are not in a position to formally synonymise both species. Further, the genetic barcode (COI) of both species remains unknown.

Differential diagnosis.

Nymph. Following combination of characters: A) colouration: abdomen dorsally brown, with pattern as Kluge and Novikova 2016: fig. 113; B) scape without distolateral process; C) labial palp segment II with broad, thumb-like protuberance; segment III conical; D) maxillary palp segment II with excavation at inner distolateral margin; E) fore femur rather broad, length ca. 3 × maximum width; dorsal margin with 8-18 curved, spine-like setae and basally a partial second row of setae; F) hind protoptera absent or minute; G) six pairs of gills.

Examined material.

Ethiopia • 6 nymphs; Lafessa; 08°23'16"N, 38°54'31"E; 1600 m; 08.11.2017; leg. W. Graf; Lf1; 1 on slide; GBIFCH00592392; 5 in alcohol; GBIFCH00515562, GBIFCH00763730, GBIFCH00829883, GBIFCH00829884, GBIFCH00829885 • 4 nymphs; Korkada; 08°30'03"N, 39°33'07"E; 1260 m; 10.11.2017; leg. W. Graf; Kk1; 3 in alcohol; GBIFCH00515561; 1 on slide; GBIFCH00592388; all material in MZL .

Biological aspects.

The specimens were collected at altitudes of 1260 m and 1600 m. Further characteristics of sampling sites are given in Englmaier et al (2020). Harrison and Hynes (1988) reported the species at 2500 m in marginal vegetation.

Distribution.

Ethiopia (Fig. 2b), DR Congo (Kopelke 1980), Tanzania (Gillies 1994), Uganda (Kluge and Novikova 2016), South Africa (Lugo-Ortiz and McCafferty 1997).